Connected: An Internet Encyclopedia
RFC 822 - 6.3. RESERVED ADDRESS

Top: Connected: An Internet Encyclopedia
Up: Requests For Comments
Up: RFC 822
Up: 6. ADDRESS SPECIFICATION
Prev: 6.2.7. EXPLICIT PATH SPECIFICATION
Next: 7. BIBLIOGRAPHY

### 6.3. RESERVED ADDRESS

It often is necessary to send mail to a site, without knowing any of its valid addresses. For example, there may be mail system dysfunctions, or a user may wish to find out a person's correct address, at that site.

This standard specifies a single, reserved mailbox address (local-part) which is to be valid at each site. Mail sent to that address is to be routed to a person responsible for the site's mail system or to a person with responsibility for general site operation. The name of the reserved local-part address is:

                                    Postmaster

so that "Postmaster@domain" is required to be valid.

Note: This reserved local-part must be matched without sensitivity to alphabetic case, so that "POSTMASTER", "postmaster", and even "poStmASteR" is to be accepted.

Next: 7. BIBLIOGRAPHY

Connected: An Internet Encyclopedia
RFC 822 - 6.3. RESERVED ADDRESS